Eabth-bobibtg machine



trarne STATES' PATENT OFFICE.

J. G. MANLEY AND F. 'EDGE, OF ZANESYILLE, OHIO.

EARTH-BORIN G MACHINE.

Specication of Letters Patent No. 31,469, dated February 19, 1861.

To af w/lom it may concern.-

B lt `known that we, J. MANLEY and F.

in the countyof Mus- Ohio, have invented a iw and useful Improvement inEarthwe do hereby declare full, clear, and eXact dription of the same,reference being had the accompanying drawings, forming a WEGE, ofZanesville, kinum and State of Bng Machines; and th the following is alo pt of this specification, in which igure l represents a front view,and Fig. of the machine;

fr central vertical section 3, a plan of the auger. :'imilar letters lesinto the ground sts and similar purposes,

1e combination of t-he uger with fad for the cribed.

screw shaft of an a swinging nut and a frame, as purposes hereinafter tobe dea hole in the` stirrup G, a nut H, beinOV screwed onto its end.Thus the screw shaft willloe allowed to revolve in relation to thestlrrup while the stirrup cannot detach itself from the screw shaft. Thesquare end of the shank L, of the auger is inserted into a square hole1n the lower part of the stirrup to it by a nut J. Between thecylindrical end I, of the screw shaft and the portion E, of said screwshaft upon which slides a coupling piece F. The bottomsurface of thisconr ng piece and the top surface of the stiirup are provided with teethconsisting of a vertical and a sloping side. The teeth of the one piecelit into the spaces between the teeth of tliie other part, as seen 1nFig. 1.

of reference, in each of the eral Iigures indicate corresponding parts.|Ihe implement is intended for boring for planting fence and the natureof r invention consists, first, in the arrangezcent of a screw shaftwith a slip coupling combination with an auger, for the puraseshereinafter to be described; second, in

To enable others, skilled in the art, to make The auger consists ofhorizontal cutters M, M, vertical cutters O, O, point N.

A platform R, is arranged around and fastened to the three legs P, ofthe implement, two handles S, S, being secured to the plat-form betweentwo of the legs, and a caster wheel Q, to the leg opposite to thehandles, as seen in Fig. 2.

The operation is as follows -The apparatus can easily be transported bytaking hold of the two handles S, S, lifting up the two legs, and movingit along upon the caster wheel Q, of the third leg similar to a wheelbarrow. lVhen arrived at the place where a hole is to be dug, theapparatus is so placed that the point N, will touch the spot where thehole is to be dug. It will be seen that the apparatus may be placed onsloping ground and yet the screw shaft and auger will-the nut A, beinghung on the two pins B, B-assume a perpendicular line and therefore whenoperated dig a perpendicular hole. As the shaft D, is revolved by meansof the handles V, V, the vertical portion of the teeth of the slipcoupling takes against the vertical portion of the teeth of the stirrup,and thus the stirrup and the auger fastened to the stirrup are caused torevolve together with the screw shaft. At the same time as the screwshaft works through, the nut A, the auger is caused to descend. In thismanner the auger digs the hole. IVhen the hole has been dug to therequired depth, the handles are revolved in the opposite direction so asto cause the screw shaft to ascend through nut A. But in this direction,the stirrup and auger will not revolve together with the screw shaftbecause the sloping sides of the coupling F`which latter can freelyslide up and down on the square portion E, of the slip over the teeth4of the stirrup. The stirrup and auger will therefore not be revolvedduring the rise of the screw shaft, but they will rise together with itas the stirrup cannot detach itself from the end of the screw shaft. Inthis manner, the auger, while rising' without revolving will be causedto lift all the loose earth out of the hole and leave the hole clean andready for the insertion of t-he post.

The man or men while working the handles, stand on the platform R, so asto bring their weight in addition to that of the machine, to bear uponthe auger.

and center shaft- What We claim as our invention and deand a frame P,substantially as :ud for sire to secure by Letters iattent, s- D thepurposes set forth.

l. The arranoement o a screw sha t with a slipeoipling F, G, incombination With an auger M, N, 0, substantially as and for the purposesset forth. Witnesses:

2. The combination of a screw shaft D, of F. A. SEBORN, an auger M, N,O, With a swinging nut A, S. H. W ooLF.

